Regulator for brake rigging



June 24, 1930. w. H. sAuvAGE REGULATOR FOR BBAKE RIG'GING OriginglFi1edNov. l, 1927 INVENTOR.

ATTORNJ Patented June 24, 1930 'UNITED, STATES TPATEMNT oFFicF.

WILLIAM Hanna sAUvAeE, or new YoRx, 1a. 2., Assreivon, BYMEsNE-AssIsiiMENrs,

T0 ROYAL RAILWAY IMPROVEMENTS c 1 PORATION or DELAWARE ORIBORAIION, orviiw YORK, in. Y.,-A eon- REGU A'ron FOR BRAKE n eenve,

Original application filed November 1, 1927, Serial No- 230,350. Dividedand this application filed October a so, 1928'. Serial No. 315,965. r r

This invention isa divisional from my United States Patent No.1,681,058,]dated August l4, 1928, filed November 1, 1927', and

relates to regulators for the brake rigging of railway vehicles. It maybeused in conjunction with any one of the several levers of the brakegear having a relatively fixed point of support, whereby that point ofsup port may be manually adjusted when desired to reestablish the entirebrake rigging into proper relative position to insure predeter- V minedpiston travel and proper brake shoe clearance.

i One of the objects of the present invenconstruction. I

, A further object is to provide a regulator of the above characterhaving few parts which may be inexpensively manufactured and assembledand which may be applied to brake rigging now in general use withoutmaterial alteration or substitution of parts.

A further object is to provide a mechanism of the above generalcharacter which is well adapted to withstand the shocks to which it issubjected in emergency application, and which is not likely to get outof order due to accumulation of dust and dirt. Other objects will be inpart obvious fromthe annexed drawings and in part hereinafter indicatedin connection therewith by the following analysis of this invention.'

This ivention accordingly consists in the features of construction,combination of parts and in the unique relation of the members and inthe "relative proportioning and disposition thereof, all as morecompletely outlined herein.

To enable others skilled in the art to fully comprehend the underlyingfeatures thereof that they may embody the same by the numerousmodifications in structure and relation contemplated by this invention,drawings Idepictinga preferred form of the invention have been annexedas part of this disclosure, in whlch is shown, partly nsection, oneembodiment of the lnvention w th The present invention will behereinafter described primarily with its relation to the truck brakerigging, altho as stated in my above. mentioned patent, the invention isapplicable to any part of the brake rigging where the normally fixedpoint of support of one of the levers is desired to be changed.

Referring now to the drawing in'detail, the numeral l indicates anormally fixed pointfof support associated with the can:

such for example as the truck bolster, and to which is securedanelongated member& by

means of pin 3. This member 2, as herein shown, comprises a bar having.a series of Slidably teeth 4 along its under side. mounted upon this baris a housing 5 having a chamber 6 containing freely movable, holdingdevlce, such as pinion 7 meshing with the teeth 4:- The lower part ofthe chamber 6 is also provided. with teeth 8 meshing with the teeth ofpinion '7.

a, At one side of the housing is an attaching member such as pin 10 forsecuring the upper end of a-lever 11.- In the'present invention, thislever may be considered what,

isusually termed the dead lever of the truck brake rigging. When thebrakes are or applied, the tendency of the point '10 is to move towardsthe right, but by reason of the interlocking relation 'of the holdingdevice or pinion with the rackserand 8,'such movement V is positivelyprevented. Connected with the left side of the housing 5 is an operatingmember such as therod12 extending towards the end of the car, where- 1by the vbrakes may be conveniently regu lated from the end of the carwithout necessitating or requiring the operator to work under the car.

It will be noted that the pinion or hold ing device 'Z'is provided'with'a central hole 13, and the housing 5 is provided with a hole 14and itsside wall. Thus,- when the hole registers with the hole 14 duringoperagear as is necessary i properbrake shoe-j clearance at the.trucks.-

tion, as will be hereinafter described more position at the right endof'the member 2 when itis desired to replace worn brakeshoes. It willalso be noted that there is preferably provided a stop. device at thefree end of the rod 2, such" for example as'a ans ers ly d spe d o te Pn The operation of the device is substantialated, theupper end of thelever 11 reacts towards the right, butby reason of the holding devicesuch movement is' positivelyfprevented when theibr'akes are applied.When it is found that'the brake shoe clearance or piston travel isabnormal, the operator merelypulls on the handle 12 towardsthe left andthe pinion 7 rolls along the toothed.

memberia as wellas the lower rack 8 until it reaches theright end of.the chamber 6.

The distance, for example, between the holes .13: and 1 1 isproportional to total brake shoe clearance, and if any excess travelexists in therig'ging,'then the pinion turns idly in the smooth space-atthe right of the chamber'as the housing. 5 continues its furtherregulating movement towards the left.

When the brake shoes carried by the lever 11, for example, are broughtinto engage- -ment with the peripheries of the wheels, one one eachside, further movement-is arrested, a-n'dthe operator releases thepullupon the handle 12 whereby the lever 11 drops back by gravity-to carrythe. housing towards the "right to the newly adjusted position as shown.This return movement insures proper brake sh'oe clearance by reason ofthe lost motion means abovedescribed.

When it is necessary to replace worn brake -s'hoes, the .operatorrepeatsthe operation s-above stated, only inserts the pin 15 'thru theregistering holes 13 and 1 1 whereupon .the housing 5 may be restored toits full release position' at the right endof the rod 2. k The new brakeshoes are then applied and the regulating operation repeated, whereuponthe desired brake shoe clearance and piston travel is substantiallyinstantaneously obtained. Thehousing 5 is preferably made in one partfor convenience of assembly, but may be suitably cut away at any de-'siredpoint in order that-the pinion 7 may be inserted into the casing.V

From-the above it will be seen thatthe present invention provides. areliable and efficient mechanism of simple-and practical constructionand 'well adapted to accom- -"plishamong' others all of the advantagesand objects herein set forth.

. VVithout' further anal 'sis the foregoing will so fully reveal thegist of this invention and therefore such adaptations should" and areintended to be comprehended within the meaning and-range ofeq'uivale'ncyof the following claims.

"I'claim:

1. In combination with .a brake rigging W H ileverha'ving a normauy adpointer-suply as follows. When the brakes are operport, manuallyactuated means for changing said fixed point of support including arelatively fixed toothed rod, a housing supported on said rod, holdingmeansiassociatedwith said housing and coacting with said toothedrodwhereby to permit a free relative movement of thehousingsubstantiallyproportional to brake shoe clearance and a further movementthereby permanently to takenp and hold any excess travel if'an'd whenthe same occurs, and means for movingsaid housing.

2. In combination with a brake rigging lever having-a normally fixedpoint of. sup port, manually actuated means 'for changing said fixedpoint ofsupport including a rela tively fixed rod having teeth on oneside, a t member. supported on I said -rodand; connected with said leveradapted to have a free movement substantially proportional to normalbrake shoe clearance, a holding device associated with said housing andcoacting With said toothed rod, and manually actuated means for movingsaid housing thereby to permit said holding means to take up one or moreteeth on said rod if and when excess travel occurs. A

3. In combination with a brake rigging lever having a normally fixedpoint of support, manually actuated means for changing said'fixed, pointof support including a relatively fixed rod having teeth on one side, amember supported on said rod and ;con-

:nected with saidlever adapted to have a free movement substantiallyproportional to normal brake shoe clearance, a holdingdevice;

associated with said housing and coacting with saidftoothed rod,manually actuated means for moving said housing thereby 'to permit saidholdlng means to take up one or -more teeth on said rod if and whenexcess travel occurs, and means for holding said holding device out ofeffective cooperative relation with said toothed rod when it is desiredto return the parts to full 'r elease position. J

combinatlon with a brake rig ging lever having a normallyfixedpoint' ofsup- LIn port, manually actuated means for changing said fixed point ofsupport including a relatively fixed rod having te eth on one side, ahousing supported on said rod and movable relatively therealong,holding-means coacting with the teeth on said rod and housing adapted toprevent movement of the fixed point of support of said lever when thebrakes are applied, manually actuated means for moving the housing andchanging the relative position of the holding means with respect to thetoothed rod if and when excess travel exists over and above apredetermined lost motion substantially proportionalto brake shoeclearance.

5. A manually operated regulator for brake rigging of railway vehiclesincluding a fixed take up rod having teeth on one side, an elongatedmember adapted to be pivotally connected with a brake lever andpositioned substantially parallel with said rod, and holding meansassociated with said member coacting with the teeth on said rod, saidmeans adapted to have'a relative free lost motion with respect to saidmember substantially proportional to brake shoe clearance then to takeup the excess travel if and when the same exists,"said holding meansadapted to cooperate with said teeth to prevent a retractive movement ofthe lever beyond the lost motion distance.

6. A manually operated regulator for brake rigging of railway vehiclesincluding a fixed take up rod having teeth on one side, a housingmovable along said rod, means in said housing adapted to coact with theteeth of said rod to permanently takeup and hold excess travel, a brakelever connected with said housing and a manually actuated memberconnected with said to move said lever and housing a distancesubstantially proportional to brake shoe clearance as well as any excessdistance if and when the same exists, said housing and holding meanscooperating to permit a lost motion movement substantially proportionalto brake shoe clearance.

Signed at New York, New York, this 29th day of October, 1928. 7

WILLIAM HENRY SAUVAGE.

brake lever adapted

